In chromatography, the Rf value is

  1. the wavelength absorbed
  2. distance moved by pigment ÷ distance moved by solvent
  3. pigment colour intensity
  4. distance moved by solvent ÷ pigment
Answer

B) distance moved by pigment ÷ distance moved by solvent

Definition of Rf. AS & A Level Biology · Topic 13 Photosynthesis · 13.1 Photosynthesis as an energy transfer process

Biology MCQ · More A Level Biology: Photosynthesis MCQs · Practise